Patents by Inventor Ulrich Hoffmann

Ulrich Hoffmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12653625
    Abstract: Surgical reference body, surgical guiding device, and surgical tracking system, and in particular to a surgical reference body, a surgical guiding device, and a surgical tracking system allowing an improved localization of surgical components.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: June 16, 2026
    Assignee: Stryker European Operations Limited
    Inventors: Jakob Kemper, Lars Metz, Ulrich Hoffmann, Fabian Huegle, Bernd Simon
  • Patent number: 12616527
    Abstract: Surgical guiding device, a surgical reference body (50) and a surgical tracking system (2), and in particular to a surgical guiding device, a surgical reference body and a surgical tracking system allowing an improved localization of surgical components.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: May 5, 2026
    Assignee: Stryker European Operations Limited
    Inventors: Jakob Kemper, Lars Metz, Ulrich Hoffmann, Fabian Huegle, Sabrina Horstmann, Peter Sterrantino
  • Patent number: 12514640
    Abstract: A method for guiding bone removal during a surgical procedure includes receiving a two-dimensional image of at least a portion of a joint during the surgical procedure, determining an alignment of a pre-generated three-dimensional model of the at least a portion of the joint with the two-dimensional image based on one or more features in the two-dimensional image that are associated with the at least a portion of the joint, wherein the pre-generated three-dimensional model comprises a representation of planned bone removal, generating an overlay image based on the determined alignment, the overlay image comprising an overlay of at least a portion of the representation of planned bone removal on the two-dimensional image, and displaying the overlay image to guide bone removal during the surgical procedure.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: January 6, 2026
    Assignee: Stryker Corporation
    Inventors: Brian Fouts, Ruth Godbey, Christopher Zeh, Ulrich Hoffmann
  • Publication number: 20240366310
    Abstract: Surgical guiding device, a surgical reference body (50) and a surgical tracking system (2), and in particular to a surgical guiding device, a surgical reference body and a surgical tracking system allowing an improved localization of surgical components.
    Type: Application
    Filed: June 8, 2021
    Publication date: November 7, 2024
    Inventors: Jakob Kemper, Lars Metz, Ulrich Hoffmann, Fabian Huegle, Sabrina Horstmann, Peter Sterrantino
  • Publication number: 20240285350
    Abstract: Surgical reference body, surgical guiding device, and surgical tracking system, and in particular to a surgical reference body, a surgical guiding device, and a surgical tracking system allowing an improved localization of surgical components.
    Type: Application
    Filed: June 8, 2021
    Publication date: August 29, 2024
    Inventors: Jakob Kemper, Lars Metz, Ulrich Hoffmann, Fabian Huegle, Bernd Simon
  • Publication number: 20240277444
    Abstract: Surgical guiding device, a surgical reference body and a surgical tracking system, and in particular to a surgical guiding device, a surgical reference body and a surgical tracking system allowing an improved localization of surgical components.
    Type: Application
    Filed: June 8, 2021
    Publication date: August 22, 2024
    Inventors: Jakob Kemper, Lars Metz, Ulrich Hoffmann, Bernd Simon
  • Publication number: 20240273760
    Abstract: Method and device for reproducing position and orientation of bone and long bone fragments, and in particular to a method and device for reproducing position and orientation of bone and long bone fragments allowing an improved re-positioning and re-orientation of bone and long bone fragments.
    Type: Application
    Filed: June 8, 2021
    Publication date: August 15, 2024
    Inventors: Jakob Kemper, Lars Metz, Ulrich Hoffmann, Fabian Huegle, Andreas Petersik, Heiko Gottschling, Manuel Schroeder
  • Publication number: 20240050164
    Abstract: A system may include a targeting cannula. The targeting cannula may extend from a first end to a second end and may define a hole that extends through the targeting cannula from the first end to the second end. The targeting cannula may include at least one visual marker disposed along a length of the targeting cannula. The at least one visual marker may be identifiable in an image obtained by a fluoroscope. The targeting cannula may include a coupling portion adjacent to the second end that may be configured to engage an imaging device. Methods of using the system also are disclosed.
    Type: Application
    Filed: May 19, 2023
    Publication date: February 15, 2024
    Applicant: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventors: Paul M. STEMNISKI, Jakob KEMPER, Eby PETERS, Ulrich HOFFMANN
  • Publication number: 20230087163
    Abstract: A technique of providing user guidance for surgical navigation is provided. A method implementation of the technique includes obtaining a predetermined spatial relationship between an optical tracking pattern and a through-hole extending through an implant, obtaining image data of the optical tracking pattern acquired by an imaging unit attached to a surgical instrument, obtaining a spatial relationship between the surgical instrument and the imaging unit at a point in time when the image data have been acquired, determining a spatial relationship between the surgical instrument and the through-hole, obtaining a plurality of predefined spatial relationships between the surgical instrument and the through-hole, and triggering simultaneous display of an indication of the plurality of predefined spatial relationships and an indication of the spatial relationship between the surgical instrument and the through-hole.
    Type: Application
    Filed: November 30, 2022
    Publication date: March 23, 2023
    Applicant: Stryker European Operations Limited
    Inventors: Alexis Christen, Jakob Kemper, Matthias Paulisch, Ulrich Hoffmann, Fabian Huegle, Lars Metz, Ulrich Spaelter
  • Patent number: 11540887
    Abstract: A technique of providing user guidance for surgical navigation is provided. A method implementation of the technique includes obtaining a predetermined spatial relationship between an optical tracking pattern and a through-hole extending through an implant, obtaining image data of the optical tracking pattern acquired by an imaging unit attached to a surgical instrument, obtaining a spatial relationship between the surgical instrument and the imaging unit at a point in time when the image data have been acquired, determining a spatial relationship between the surgical instrument and the through-hole, obtaining a plurality of predefined spatial relationships between the surgical instrument and the through-hole, and triggering simultaneous display of an indication of the plurality of predefined spatial relationships and an indication of the spatial relationship between the surgical instrument and the through-hole.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: January 3, 2023
    Assignee: Stryker European Operations Limited
    Inventors: Alexis Christen, Jakob Kemper, Matthias Paulisch, Ulrich Hoffmann, Fabian Huegle, Lars Metz, Ulrich Spaelter
  • Publication number: 20210378753
    Abstract: A technique of providing user guidance for surgical navigation is provided. A method implementation of the technique includes obtaining a predetermined spatial relationship between an optical tracking pattern and a through-hole extending through an implant, obtaining image data of the optical tracking pattern acquired by an imaging unit attached to a surgical instrument, obtaining a spatial relationship between the surgical instrument and the imaging unit at a point in time when the image data have been acquired, determining a spatial relationship between the surgical instrument and the through-hole, obtaining a plurality of predefined spatial relationships between the surgical instrument and the through-hole, and triggering simultaneous display of an indication of the plurality of predefined spatial relationships and an indication of the spatial relationship between the surgical instrument and the through-hole.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 9, 2021
    Applicant: Stryker European Operations Limited
    Inventors: Alexis Christen, Jakob Kemper, Matthias Paulisch, Ulrich Hoffmann, Fabian Huegle, Lar Metz, Ulrich Spaelter
  • Publication number: 20210259774
    Abstract: A method for guiding bone removal during a surgical procedure includes receiving a two-dimensional image of at least a portion of a joint during the surgical procedure, determining an alignment of a pre-generated three-dimensional model of the at least a portion of the joint with the two-dimensional image based on one or more features in the two-dimensional image that are associated with the at least a portion of the joint, wherein the pre-generated three-dimensional model comprises a representation of planned bone removal, generating an overlay image based on the determined alignment, the overlay image comprising an overlay of at least a portion of the representation of planned bone removal on the two-dimensional image, and displaying the overlay image to guide bone removal during the surgical procedure.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 26, 2021
    Applicant: Stryker Corporation
    Inventors: Brian FOUTS, Ruth GODBEY, Christopher ZEH, Ulrich HOFFMANN
  • Patent number: 8809600
    Abstract: An improved process for the hydration of C2-C5 olefins to the corresponding alcohols via heterogeneous reactive extraction with ion exchange resin catalysts is provided. The improvements are based on the application of a structured catalytic packing, a simultaneous product extraction in multiple condensed phases for enhancement of the overall alcohol production rate and a simplified product purification procedure.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: August 19, 2014
    Inventors: Harald Kohnz, Thomas Urban, Detlef Hoell, Bernhard Pfeuffer, Ulrich Hoffmann, Ulrich Kunz
  • Publication number: 20120016164
    Abstract: An improved process for the hydration of C2-C5 olefins to the corresponding alcohols via heterogeneous reactive extraction with ion exchange resin catalysts is provided. The improvements are based on the application of a structured catalytic packing, a simultaneous product extraction in multiple condensed phases for enhancement of the overall alcohol production rate and a simplified product purification procedure.
    Type: Application
    Filed: January 14, 2010
    Publication date: January 19, 2012
    Inventors: Harald Kohnz, Thomas Urban, Detlef Hoell, Bernhard Pfeuffer, Ulrich Hoffmann, Ulrich Kunz
  • Patent number: 6869652
    Abstract: Disclosed are porous polymer/carrier solid phase reactants which consist of a polymer that consists of fine particles and is situated in the pore space of porous carrier materials. Reactive groups are bound to the polymer. Said groups act as reactants in organic-chemical syntheses. Said solid phase reactants can be produced as bulk material or tubes, plates or rods, can be built in pressure sealed housings and can be used in flow-through apparatuses or microtitration fields for the synthesis of organic products. Potential active agents can be produced at high speed by using the inventive porous polymer/carrier solid phase reactants that can be flown through convectively, whereby production requires only little isolation and cleaning.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: March 22, 2005
    Inventors: Ulrich Kunz, Andreas Kirschning, Ulrich Hoffmann
  • Publication number: 20040062941
    Abstract: Disclosed are porous polymer/carrier solid phase reactants which consist of a polymer that consists of fine particles and is situated in the pore space of porous carrier materials. Reactive groups are bound to the polymer. Said groups act as reactants in organic-chemical syntheses. Said solid phase reactants can be produced as bulk material or tubes, plates or rods, can be built in pressure sealed housings and can be used in flow-through apparatuses or microtitration fields for the synthesis of organic products. Potential active agents can be produced at high speed by using the inventive porous polymer/carrier solid phase reactants that can be flown through convectively, whereby production requires only little isolation and cleaning.
    Type: Application
    Filed: May 15, 2003
    Publication date: April 1, 2004
    Inventors: Ulrich Kunz, Andreas Kirschning, Ulrich Hoffmann
  • Patent number: 6069261
    Abstract: A process carried out in a reaction column for the chemical reaction of substances the reaction of which is affected by an unfavorable equilibrium position of the main reaction or a preceding equilibrium, wherein during the reaction one or more substances to be separated are continuously removed from the reaction mixture by one or more auxiliaries.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: May 30, 2000
    Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie
    Inventors: Ulrich Hoffmann, Ulrich Kunz
  • Patent number: 5780688
    Abstract: The invention concerns a supported catalyst in the form of packing and constructed on an open-pore support material on whose external and internal surfaces a macro-porous ion exchange resin is mechanically and/or chemically affixed.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: July 14, 1998
    Assignee: Veba Oel AG
    Inventors: Ulrich Hoffmann, Ulrich Kunz, Hartmut Bruderreck, Klaus Gottlieb, Kuno Schadlich, Stefan Becker
  • Patent number: 5452545
    Abstract: An impact support for reinforcing a door of a motor vehicle, including a hollow profile part that is fastenable in the vehicle door. The hollow profile part having, at least in a central region thereof, a portion with a roughly oval cross section having a cross-sectional height that is greater than a cross-sectional depth. The hollow profile part is arranged in the motor vehicle door so that the depth lies parallel to an impact direction. The roughly oval cross section is formed by two straight sides which lie parallel at a distance from one another and are connected at their ends by a convex portion that has a radius that is always greater than half the distance between the two straight sides.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: September 26, 1995
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Josef Siekmeyer, Ulrich Hoffmann
  • Patent number: 5370751
    Abstract: An air hardening steel which is killed during casting used as material for manufacturing structural tubes for structural elements which are subjected to high mechanical loads, particularly for door reinforcements in the manufacture of automobiles. The steel is composed of in percent by weight:0.15-0.30% C0.50-0.80% Si2.05-3.35% Mnmax. 0.03% Pmax. 0.03% S0.50-1.00% Crmax. 0.60% Momax. 0.05% Al0.01-0.05% Ti0.0015-0.0035% B0.002-0.015% Nremainder iron and impurities,wherein:Ti(%):N(%).gtoreq.3.4%Mn(%)+Cr (%)+Mo(%)+Si(%).gtoreq.3.3%.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: December 6, 1994
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Ingo von Hagen, Ulrich Menne, Ulrich Hoffmann, Bernhard Vogelsang